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    • Question : The molecular mass of a gas is: Option 1: twice its vapour pressure Option 2: equal to its vapour pressure Option 3: half its vapour press ...
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    Question : The molecular mass of a gas is:

    Option 1: twice its vapour pressure

    Option 2: equal to its vapour pressure

    Option 3: half its vapour pressure

    Option 4: not related to its vapour pressure

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    Team Careers360 21st Jan, 2024
    Answer
    Answer (1)
    Team Careers360 22nd Jan, 2024

    Correct Answer: twice its vapour pressure


    Solution : The correct option is twice its vapour pressure .

    The vapour pressure of a substance is the pressure exerted by its vapour when the substance is in equilibrium with its liquid (or solid) phase. Since any gas has a molecular mass that is twice as dense as hydrogen, which has two atoms per molecule, it has a vapour pressure that is twice as high.

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